K223912 · Sigmagraft, Inc. · NPL · Aug 17, 2023 · Dental
Device Facts
Record ID
K223912
Device Name
InterCollagen® Guide
Applicant
Sigmagraft, Inc.
Product Code
NPL · Dental
Decision Date
Aug 17, 2023
Decision
SESE
Submission Type
Traditional
Regulation
21 CFR 872.3930
Device Class
Class 2
Attributes
Therapeutic
Indications for Use
InterCollagen® Guide alone or in combination with suitable augmentation materials (like autogenous bone, allogeneic, xenogeneic or alloplastic bone replacement materials) is immediate or delayed guided tissue and bone regeneration. - · in the context of a treatment of fenestration defects - · in case of dehiscence defects - · after apicoectomy and resection of retained teeth - · in extraction sockets after tooth extractions - · in case of immediate or delayed augmentation around implants in extraction sockets
Device Story
InterCollagen® Guide is a resorbable porcine pericardium-derived collagen membrane used in dental/periodontal surgery. It acts as a cell-occlusive barrier to prevent non-osteogenic cell infiltration into bone defects, facilitating bone-forming cell ingrowth. The device is trimmed to size and applied by a clinician during surgical procedures; it conforms to the site upon hydration. It is remodeled and incorporated by host tissue, resorbing within 15 weeks. The membrane provides a stable environment for bone regeneration, potentially improving clinical outcomes in defect repair and implant site preparation.
Clinical Evidence
No clinical data. Evidence consists of bench testing (biocompatibility per ISO 10993, pyrogenicity, shelf-life/packaging) and a canine two-wall intrabony defect model comparing the subject device to the predicate. Animal study endpoints (pathology, histology, histomorphology, micro-CT) at 2, 6, and 13 weeks showed performance substantially equivalent to the predicate.
Technological Characteristics
Resorbable collagen membrane (Type I and III) derived from porcine pericardium. Dimensions: 12x25mm to 30x40mm. Sterilized via gamma irradiation (SAL 10^-6). Biocompatible, cell-occlusive, implantable. Packaging: double blister pack. Complies with ISO 10993, ISO 22442, ISO 11137, ISO 11607, and ASTM D4169.
Indications for Use
Indicated for patients requiring guided bone or tissue regeneration in dental/periodontal surgical procedures, including fenestration defects, dehiscence defects, post-apicoectomy/resection, extraction sockets, and implant site augmentation.
Regulatory Classification
Identification
Bone grafting material is a material such as hydroxyapatite, tricalcium phosphate, polylactic and polyglycolic acids, or collagen, that is intended to fill, augment, or reconstruct periodontal or bony defects of the oral and maxillofacial region.
Special Controls
*Classification.* (1) Class II (special controls) for bone grafting materials that do not contain a drug that is a therapeutic biologic. The special control is FDA's “Class II Special Controls Guidance Document: Dental Bone Grafting Material Devices.” (See § 872.1(e) for the availability of this guidance document.)(2) Class III (premarket approval) for bone grafting materials that contain a drug that is a therapeutic biologic. Bone grafting materials that contain a drug that is a therapeutic biologic, such as biological response modifiers, require premarket approval.
(c)
*Date premarket approval application (PMA) or notice of product development protocol (PDP) is required.* Devices described in paragraph (b)(2) of this section shall have an approved PMA or a declared completed PDP in effect before being placed in commercial distribution.
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08/17/23
SigmaGraft Inc. Elcin Chang General Manager 575 Sally Place Fullerton, California 92831
## Re: K223912
Trade/Device Name: InterCollagen® Guide Regulation Number: 21 CFR 872.3930 Regulation Name: Bone Grafting Material Regulatory Class: Class II Product Code: NPL Dated: July 26, 2023 Received: July 26, 2023
# Dear Elcin Chang:
We have reviewed your Section 510(k) premarket notification of intent to market the device referenced above and have determined the device is substantially equivalent (for the indications for use stated in the enclosure) to legally marketed predicate devices marketed in interstate commerce prior to May 28, 1976, the enactment date of the Medical Device Amendments, or to devices that have been reclassified in accordance with the provisions of the Federal Food, Drug, and Cosmetic Act (Act) that do not require approval of a premarket approval application (PMA). You may, therefore, market the device, subject to the general controls provisions of the Act. Although this letter refers to your product as a device, please be aware that some cleared products may instead be combination products. The 510(k) Premarket Notification Database located at https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpmn/pmn.cfm identifies combination product submissions. The general controls provisions of the Act include requirements for annual registration, listing of devices, good manufacturing practice, labeling, and prohibitions against misbranding and adulteration. Please note: CDRH does not evaluate information related to contract liability warranties. We remind you, however, that device labeling must be truthful and not misleading.
If your device is classified (see above) into either class II (Special Controls) or class III (PMA), it may be subject to additional controls. Existing major regulations affecting your device can be found in the Code of Federal Regulations, Title 21, Parts 800 to 898. In addition, FDA may publish further announcements concerning your device in the Federal Register.
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Please be advised that FDA's issuance of a substantial equivalence determination does not mean that FDA has made a determination that your device complies with other requirements of the Act or any Federal statutes and regulations administered by other Federal agencies. You must comply with all the Act's requirements, including, but not limited to: registration and listing (21 CFR Part 807); labeling (21 CFR Part 801); medical device reporting of medical device-related adverse events) (21 CFR 803) for devices or postmarketing safety reporting (21 CFR 4, Subpart B) for combination products (see https://www.fda.gov/combination-products/guidance-regulatory-information/postmarketing-safety-reportingcombination-products); good manufacturing practice requirements as set forth in the quality systems (QS) regulation (21 CFR Part 820) for devices or current good manufacturing practices (21 CFR 4, Subpart A) for combination products; and, if applicable, the electronic product radiation control provisions (Sections 531-542 of the Act); 21 CFR 1000-1050.
Also, please note the regulation entitled, "Misbranding by reference to premarket notification" (21 CFR Part 807.97). For questions regarding the reporting of adverse events under the MDR regulation (21 CFR Part 803), please go to https://www.fda.gov/medical-device-safety/medical-device-reportingmdr-how-report-medical-device-problems.
For comprehensive regulatory information about medical devices and radiation-emitting products, including information about labeling regulations, please see Device Advice (https://www.fda.gov/medicaldevices/device-advice-comprehensive-regulatory-assistance) and CDRH Learn (https://www.fda.gov/training-and-continuing-education/cdrh-learn). Additionally, you may contact the Division of Industry and Consumer Education (DICE) to ask a question about a specific regulatory topic. See the DICE website (https://www.fda.gov/medical-device-advice-comprehensive-regulatoryassistance/contact-us-division-industry-and-consumer-education-dice) for more information or contact DICE by email (DICE@fda.hhs.gov) or phone (1-800-638-2041 or 301-796-7100).
Sincerely.
Sherrill Lathrop Blitzer
for Andrew Steen Assistant Director DHT1B: Division of Dental and ENT Devices OHT1: Office of Ophthalmic, Anesthesia. Respiratory, ENT and Dental Devices Office of Product Evaluation and Quality Center for Devices and Radiological Health
Enclosure
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# Indications for Use
510(k) Number (if known) K223912
Device Name InterCollagen® Guide
Indications for Use (Describe)
InterCollagen® Guide alone or in combination with suitable augmentation materials (like autogenous bone, allogeneic, xenogeneic or alloplastic bone replacement materials) is immediate or delayed guided tissue and bone regeneration.
- · in the context of a treatment of fenestration defects
- · in case of dehiscence defects
- · after apicoectomy and resection of retained teeth
- · in extraction sockets after tooth extractions
- · in case of immediate or delayed augmentation around implants in extraction sockets
Type of Use (Select one or both, as applicable)
X Prescription Use (Part 21 CFR 801 Subpart D)
Over-The-Counter Use (21 CFR 801 Subpart C)
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Date Prepared:
#### FDA 510(k) Summary
August 16, 2023
**Submitter's Contact Information**
| Submitter: | SigmaGraft, Inc. 575 Sally Place Fullerton, CA 92831, USA |
|-----------------|-----------------------------------------------------------|
| Contact Person: | Elcin Chang |
| Phone Number: | +1-714-525-0112 |
| Fax Number: | +1-714-525-0116 |
| Prepared By: | Elcin Chang, General Manager |
Email:
#### Name of the Device
- Trade Names: Common Name: Classification Name: Regulation Number: Device Classification: Product Code(s): Classification Panel:
#### Predicate Device
Primary Predicate: Common Name: Classification Name: Regulation Number: Device Classification: Product Code(s): Classification Panel:
InterCollagen® Guide Bone Grafting Material Barrier, Animal Source, Intraoral នូវ72.3930 II NPL Dental
e.chang@sigmagraft.com
Straumann Jason Membrane (K173562) Bone Grafting Material Barrier, Animal Source, Intraoral ន្ល872.3930 II NPL Dental
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# Device Description
InterCollagen® Guide is a resorbable collagen membrane, derived from porcine pericardium. InterCollagen® Guide is intended for periodontal and/or dental surgical procedures as a barrier membrane restricting the entry of rapidly proliferating non-osteogenic cells within the bone defect while allowing the ingrowth of slow-growing bone forming cells. The membrane is a bioresorbable barrier which eventually is remodeled and/or incorporated by the host tissue. InterCollagen® Guide is substantially resorbed within 15 weeks after implantation. It is adaptable and easy to handle. It can be trimmed to the desired size and conforms easily when hydrated. The product is terminally sterilized via gamma irradiation.
## Sizes
| Type | Size (mm) | Product code |
|------------------------------|-----------|--------------|
| Resorbable Collagen Membrane | 12 x 25 | ICG1225 |
| | 15 x 20 | ICG1520 |
| | 20 x 30 | ICG2030 |
| | 25 x 25 | ICG2525 |
| | 30 x 40 | ICG3040 |
InterCollagen® Guide is provided in five different sizes:
# Indications for Use
InterCollagen® Guide alone or in combination with suitable augmentation materials (like autogenous bone, allogeneic, xenogeneic or alloplastic bone replacement materials) can be used in guided bone regeneration (GBR) and guided tissue regeneration (GTR) procedures as a biodegradable barrier for:
- . in the context of a treatment of fenestration defects
- in case of dehiscence defects
- after apicoectomy and resection of retained teeth
- in extraction sockets after tooth extractions
- in case of immediate or delayed augmentation around implants in extraction sockets ●
# Summary/Comparison of Technical Characteristics
The subject device has substantially equivalent technological characteristics to the marketed predicate device. A comparison of the relevant technological characteristics between the subject and primary predicate device is provided in the table that follows.
# Biocompatibility Testing
A series of in vitro and in vivo biocompatibility testing was performed to assess the safety of the subject device. Testing was determined in accordance with ISO 10993-1 and FDA Guidance on
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Use of International Standard ISO 10993-1 for the biological evaluation of medical devices within a risk management process.
The biocompatibility testing performed is summarized in the table below.
| Test | Standards | Result |
|---------------------------------------------------------|---------------------------------------|--------------------------------------------------------------------------------------------------------------------|
| Mouse Lymphoma forward mutation<br>assay | ISO 10993-3,<br>OECD 476, OECD<br>490 | Non-mutagenic |
| Genotoxicity (Ames: Bacterial<br>Reverse Mutation) Test | ISO 10993-3 | Non-mutagenic |
| Kligman Maximization Sensitization<br>Test | ISO 10993-10 | Non-sensitizer |
| Intracutaneous irritation test | ISO 10993-10 | Non-irritant |
| Cytotoxicity L929 Neutral Red<br>uptake test | ISO 10993-5 | Non-cytotoxic |
| Acute Systemic Toxicity Test | ISO 10993-11 | Non-toxic |
| 90 day Subchronic Toxicity Test | ISO 10993-11 | Non-toxic |
| Pyrogenicity (material mediated) | ISO 10993-11 | Non-pyrogenic |
| Local effects after Implantation Test | ISO 10993-6 | Minimum tissue reaction at 2, 11,<br>and 15 weeks of implantation and<br>no adverse tissue reaction to the<br>host |
#### Animal Testing
The performance of the device in a canine two-wall intrabony defect model was compared to the performance of the predicate device, Jason membrane. The objective of this study was to evaluate the in vivo performance, local effects following implantation, and systemic toxicity of the test article, InterCollagen® Guide, in comparison to a predicate and empty control.
End points for pathology, histology, histomorphology and micro-CT were taken after 2, 6, and 13 weeks. The subject device performed in a manner substantially equivalent to the cleared predicate device.
#### Animal Tissue Management
Animal tissues are managed in accordance with the following standards and guidance documents:
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- ISO 22442-1 Animal Tissues and Their Derivatives Utilized in the Manufacture of Medical Devices - Part 1: Analysis and Risk Management
- ISO 22442-2 Animal Tissues and Their Derivatives Utilized in the Manufacture of ● Medical Devices - Part 2: Controls on Sourcing, Collection, and Handling
- ISO 22442-3 Animal Tissues and Their Derivatives Utilized in the Manufacture of ● Medical Devices – Part 3: Validation of the Elimination and/or Inactivation of Viruses and Transmissible Agents
- Medical Devices Containing Materials Derived from Animal Sources (Except for In ● Vitro Diagnostic Devices) Guidance for Industry and Food and Drug Administration Staff, CDRH, FDA, March 15, 2019
- FDA Guidance for Industry Q5A Viral Safety Evaluation of Biotechnology Products ● Derived from Cell Lines of Human or Animal Origin, CDER, CBER, September 1998
## Sterilization
Sterilization validation was performed in accordance with ISO 11137-1 Sterilization of health care products – Radiation Part 1 Requirements for development, validation and routine control of a sterilization process for medical devices, ISO 11137-2 Sterilization of health care products – Radiation Part 2 Establishing the sterilization dose, and ISO 11737 Sterilization of Medical Devices – Microbiological Method – Determination of the Population of Microorganisms on Products.
# Pyrogenicity
This device is non-pyrogenic. Each batch of product manufactured is tested for endotoxin per the Limulus Amebocyte Lysate (LAL) endotoxin test, USP <85> and USP <161>, as finished product release test.
# Shelf Life and Stability
Product and packaging stability was determined using real-time aging data. Performance testing of packaging system was tested in accordance with ASTM D4169 Standard Practice for Performance Testing of Shipping Containers and Systems. Selection, qualification, and validation of packaging were conducted in accordance with ISO 11607 Packaging for Terminally Sterilized Medical Devices – Requirements for Materials, Sterile Barrier Systems, and Packaging Systems.
#### Viral Inactivation
Viral inactivation studies were performed in accordance with ISO 22442-3 to ensure the viral safety of the product.
# Clinical Studies
Clinical performance data was not required to determine substantial equivalence.
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# Conclusion
Chemical, physical, and biocompatibility tests as well as pre-clinical data show that the subject device is substantially equivalent to the predicate device. Comparison with the predicate device shows that the device has similar specifications and performance. Therefore, the conclusions drawn from the nonclinical and preclinical tests demonstrate that the device is substantially equivalent to its predicate device.
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| Feature | InterCollagen® Guide<br>(K223912) | Straumann Jason Membrane<br>(K173562) | Equivalence Discussion |
|-------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| | Test article | Predicate device | |
| Indications<br>for Use | InterCollagen® Guide alone or in<br>combination with suitable<br>augmentation materials (like<br>autogenous bone, allogeneic,<br>xenogeneic or alloplastic bone<br>replacement materials) can be<br>used in guided bone regeneration<br>(GBR) and guided tissue<br>regeneration (GTR) procedures as<br>a biodegradable barrier for:<br>in the context of a treatment<br>of fenestration defects in case of dehiscence defects<br>after apicoectomy and<br>resection of retained teeth in extraction sockets after<br>tooth extractions in case of immediate or<br>delayed augmentation around<br>implants in extraction sockets | Jason membrane alone or in<br>combination with suitable<br>augmentation materials (like<br>autogenous bone, allogeneic,<br>xenogeneic or alloplastic bone<br>replacement materials) is indicated<br>for immediate or delayed guided<br>tissue and bone regeneration.<br>In case of surgical bone defects<br>and bone wall defects In the context of sinus floor<br>augmentation and support of the<br>Schneiderian membrane In the context of Maxillary ridge<br>augmentation In the context of Maxillary ridge<br>reconstruction for prosthetic In the context of Treatment<br>Fenestration defects In case of Periodontal bone<br>defects (1-3 wall defects) and<br>furcation defects (class I and II) In case of Dehiscence defects after<br>apicectomy, cystectomy, resection<br>of retained teeth and resection of<br>other bone lesions | Equivalent<br>Both devices are indicated for<br>immediate or delayed guided<br>tissue and bone regeneration.<br>The indications for the subject<br>device are a subset of the<br>indications for the predicate<br>device. |
| | | | |
| | | In extraction sockets after tooth extractions In case of immediate or delayed augmentation around implants in extraction sockets | |
| Mode of Action | InterCollagen® Guide is a bio-resorbable barrier which eventually is remodeled and/or incorporated by the host tissue. | Jason Membrane is a bio-resorbable barrier which eventually is remodeled and/or incorporated by the host tissue. | Equivalent<br>Both devices are resorbable and function as a barrier to provide adequate new bone formation without soft tissue infiltration. |
| Operating Principle | Cell-occlusive<br>Implantable<br>Resorbable<br>Biocompatible | Cell-occlusive<br>Implantable<br>Resorbable<br>Biocompatible | Equivalent<br>Both devices function as a barrier to provide adequate new bone formation without soft tissue infiltration. They are both implantable, resorbable, and biocompatible. |
| Material origin | Porcine pericardium | Porcine pericardium | Equivalent<br>Both devices use a native collagen membrane obtained from porcine pericardium. |
| Collagen Type | Collagen Type I and Type III | Collagen Type I | Equivalent<br>Both devices have mainly Collagen Type I. |
| Form | Membrane | Membrane | Equivalent |
| | | | They act as a barrier against the infiltration of cells not involved in bone formation. |
| Color | White to off white | White to off white | Equivalent<br>Both devices have color that is white to off white. |
| Sizes | 12 x 25 mm<br>15 x 20 mm<br>20 x 30 mm<br>25 x 25 mm<br>30 x 40 mm | 15 x 20 mm<br>20 x 30 mm<br>30 x 40 mm | Equivalent<br>Both devices are provided in clinically relevant sizes for intra-oral surgical procedures. |
| Resorption<br>Time | Substantially resorbed by 15 weeks | Substantially resorbed by 12 weeks | Equivalent<br>The longer endurance of the desired barrier properties provides adequate new bone formation without soft tissue infiltration. |
| Sterilization<br>Method | Irradiation | Ethylene Oxide | Equivalent<br>Both the subject and predicate device achieve a Sterility Assurance Level of 10-6. |
| Single<br>Use/Reuse | Single use only | Single use only | Equivalent<br>Both devices are single use only. |
| Packaging | Double blister pack | Double pouch pack | Equivalent<br>Both devices facilitate aseptic delivery of the sterile device into the sterile surgical field |
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Two short videos show you everything — or skip straight to the written tutorial if you'd rather read. You can reopen this any time from the Tutorial button in the top bar.
Part 1 — Search, results, and everyday workflows 16 min
Part 2 — Embeddings: the galaxy map 3 min
1. Search: exact and fuzzy
Type a phrase like "coronary artery calcification" into the search box. You get two kinds of results. Exact results match the literal phrase — prefix searches work ("coronary artery calcificati") but suffix searches do not. Fuzzy results match on the meaning and intent of your phrase rather than the exact words, and are sorted by relevance score. Hover over the Exact or Fuzzy badge on any row to see exactly why it matched.
Use the checkboxes above the results to narrow: SaMD keeps only software-only devices, AI / ML keeps only devices with AI.
Exact vs. fuzzy search: what's the difference?
Exact matches on the literal phrase (prefix search works, suffix does not). Fuzzy matches on the meaning and intent of the phrase rather than the exact words. Hover over the badge on any row to see why it matched.
You search "coronary artery calcification" and want only software devices with AI. What two filters do you apply?
Narrow by SaMD (software-only devices), then narrow by AI/ML (devices with AI).
2. The results table
Scroll right in the results table. The intended use is extracted for you — no need to open the PDF. The device story gives a high-level snapshot of what the device does and how it's used. The AI Performance sub-table shows each output name, acceptance criteria, observed values, and development/test dataset descriptions — the same format Innolitics uses for regulatory strategy outputs, and the fastest high-level fingerprint of an AI device. It is AI-generated but has been very reliable in practice.
Where do you find a device's intended use without opening the PDF?
Scroll right in the search results table. The intended use column is extracted for you; no need to dig into the 510(k) summary PDF.
What does the AI Performance sub-table show, and why is it useful?
Output name, acceptance criteria, observed values, development dataset description, and test dataset description. It's the same format we use for regulatory strategy output and Fast 510(k) input, and the fastest high-level fingerprint of an AI device. AI-generated but reliable in practice.
3. Judging fuzzy relevance
Fuzzy results trail off in relevance as you scroll. Use three signals to decide how far down to go: the fuzzy badge explanations, the intended use column, and whether your target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, you're past the relevant zone. A top hit with a low score (~0.4) and a stretched explanation is a hint the closest predicates are far away — the project may be headed for De Novo. Note the fuzzy search is a pattern match: it doesn't handle negation ("not") well, and hardware devices can appear — filter by SaMD/AI ML to cut them.
How do you judge how far down fuzzy search results to go?
Use the relevancy signals: the fuzzy badge explanations, the intended use column, and whether the target output (e.g., Cobb angle) still appears in the AI Performance sub-table. Once it stops appearing, results are trailing off in relevancy.
4. Device detail page: chat and citations
Click a device name to open its detail page: device facts on the left, a chat window on the right. Ask something like "Describe the training data". The answer carries little citation bubbles — click one to jump to the highlighted passage in the source PDF, so you can verify every AI answer against the document. There's also a Download PDF button for sharing.
How do you verify an AI chat answer on the device detail page?
Click the citation bubbles to jump to the relevant highlight in the source document.
Reading rule for every project: how many summaries do you read in full?
At least the three most relevant 510(k) or De Novo summaries, in full. After that, use targeted chat questions to confirm your memory quickly. The tool supports this professional habit — it doesn't replace it.
5. Side-by-side comparison
Select multiple rows in the results table (aim for under ~10), then open the PDF Viewer tab. Ask one question — it goes to all selected devices in parallel, each with citations. This is the fastest way to compare and contrast devices: training data, PCCP scope, how they handled adding new scanners, and so on.
What does the side-by-side PDF viewer mode do?
Select multiple devices, open the PDF viewer tab, and ask one question (e.g., "Describe the training data"). It queries all selected devices simultaneously with citations, so you can compare and contrast quickly.
6. Collections
With rows selected, go to the Collections tab and create a labeled collection (e.g., "Cobb Angle Project"). Reload that selection any time — before a client call, pull up the collection and ask questions across all of its devices at once.
How do you save a set of selected devices for later use?
Select the rows, go to the Collections tab, and create a labeled collection (e.g., "Cobb Angle Project"). You can reload the selection anytime and carry it into the PDF viewer and other tabs that support selections.
7. Product codes and the regulations tree
Click a product code in the results to jump to it in the regulations tree — identification text, sibling product codes, and devices you can open in a PDF viewer on the right. Click a regulation number to see its identification, special controls, and related product codes. You can also search by product code or regulation number at the top of the tree. Always read the special controls if any exist for your device — it broadens your search and sharpens pre-kickoff research.
What can you do from the regulations tree view?
Browse product codes and regulation numbers, read the identification text and special controls, browse sibling product codes, open device PDFs on the right, and search by product code or regulation number at the top of the tree.
8. Chart view
Click Show Chart and segment by regulation number (or product code) to see which regulations dominate your result set. Clicking a regulation takes you into the regulations tree. Great for spotting that most matches are, say, hardware laparoscopic devices — a cue to go back and filter.
How do you see which regulations dominate a search result set?
Click "Show Chart" and segment by Regulation Number. Clicking a regulation takes you to the regulations tree.
9. The predicate graph
Open the Predicates tab for a family-tree view of predicate relationships. Click a node to trace its parents and children; selections from search carry over pre-selected. Commonly predicated devices are worth reading — a lot of people predicated them for a reason. The visual lineage is also handy on client calls, e.g. to show how a predicate family evolved and justify why your predicate still holds.
In the predicate graph, why are commonly predicated devices worth reading?
A lot of people predicated them for a reason. Clicking a node traces parents and children, and selections from search carry over pre-selected.
10. Embeddings: the galaxy map
The Embeddings tab plots every matching document in a 2-D "galaxy map" where semantically similar devices cluster together. Hover or click clusters to explore, and let AI label the clusters for you. Embeddings beat product codes for grouping: two devices can carry different product codes (LLZ vs. QIH) yet do the same thing — the embedding captures the meaning of the intended use and device story. This is also exactly how retrieval-augmented generation (RAG) works under the hood, and it makes a great visual on client calls.
Try it yourself
Head to the search page and work through a few of these AI/ML fuzzy searches to build intuition: perivascular fat on CT · aortic valve calcification opportunistic screening on noncontrast CT · breast cancer prediction on digital pathology slides · autism detection · gestational age prediction · a hearing aid that can also detect a pulse · foundation model based analysis of ECG · large language models · penetration test. Watch how the relevance scores, intended use, and AI Performance tables tell you when results stop being meaningful.